Karl Snow, of Cedar Road, Balby, was sentenced to 20 months in prison for five counts of sexual assault against girls, who were all under the age of 16.
Snow, aged 29, admitted sexually assaulting three girls aged 12, 13 and 15 near a school.
He was found guilty at trial of another two assaults – on one 11 and one 12-year-old girl – that both took place at Meadowhall Shopping Centre in Sheffield.
The court heard the first incident involved a 12-year-old girl and took place on March 15, 2013. Snow followed her as she was walking home from school and then grabbed her breast before walking off without saying anything.
On June 3, 2013, Snow grabbed the breast of a 13-year-old girl near a school and said: “You’re sexy,” before running away.
Three days later, on June 6, 2013, Snow grabbed the breast of a 15-year-old girl who was walking to school. He then ran off.
The first Meadowhall incident took place on April 2 2015 and involved an 11-year-old girl. The court heard Snow grabbed the bottom of the girl in a shop before offering to buy her whatever she wanted in return for sex.
On July 27, Snow followed a 12-year-old girl in Meadowhall before grabbing her bottom.
Snow was spotted on CCTV following the victim before the incident.
Prosecuting, Hannah Lynch read out a victim impact statement from the 11-year-old Meadowhall victim in which the young girl said she no longer felt safe going to the shopping centre without an adult.
The statement said: “At the time I was left really scared and very shocked. I was instantly in tears.
“I used to enjoy going to Meadowhall. It was somewhere I felt safe. After the incident I didn’t go back for five or six months because I was scared I would bump into him again.”
Speaking in mitigation, Gordon Stables said Snow had no previous convictions.
He added: “He feels utter shame and embarrassment for his actions.”
Jailing Snow for 20 months in total on Friday, Recorder Andrew Baker QC said two of the incidents had been aggravated by the verbal comments made by Snow.
Snow was also made the subject of a sexual harm prevention order for five years, put on the sex offenders’ register for 10 years and banned from working with children indefinitely.